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Monitoring Result of Rock Mass Behavior during Excavation of Deep Cavern  

Lee Hong-Gyu (두산산업개발주식회사 토목사업본부 토목턴키팀)
Publication Information
Tunnel and Underground Space / v.16, no.1, 2006 , pp. 11-25 More about this Journal
Abstract
The world's largest nucleon decay experiment facility is constructed at a depth of approximately 1,000 meters, in the Kamio Mine, Japan. The excavated cavern is consisted of a cylinder of 42.4 m high and a semi elliptical dome of 15.2 m high, with a bottom diameter of 40 m. The total excavation volume is approximately $69,000\;m^3$. Because of the character as a large cavern excavation in deep underground, there is many unknown factors in rock mechanics. Based on the results of rock test and numerical analysis, the monitoring of rock mass behavior accompanying progress of construction was performed by various instruments installed in the rock mass surrounding the cavern. The monitoring data was used in the study of measures for cavern stability.
Keywords
Deep cavern; Initial stress; Rock mass behavior; Monitoring; Construction method;
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  • Reference
1 Amadei B, 1985, Applicability of the theory of hollow inclusion for overcoring stress measurements in rock, Rock Mechanics and Rock Engineering, Vol. 18, 107 -130   DOI
2 李弘揆.橫山幸也,1994, 大規模空洞岩盤掘削時の岩盤擧動計測結果, 應用地質株式會社 第8 回東京事業本部技術發義會講演集, 9-14
3 Sugahara K. and Obara Y., 1986, Mesurements of in-situ rock stress by hemispherical-ended borehole technique. J. Min. Sci. Technol. 3, 287 - 300   DOI
4 Sugahara K., Sakaguchi K., Obara Y., Nakayama T. and Hyun-Kuk Jang, 1992, Rock Stress Measurement and Numerical Approach for Cavern Designing, J. KSRM, TUNNEL AND UNDERGROUND SPACE, Vol. 2, 164 -176
5 Kanagawa T., Hibino S. and Ishida T, 1986, In-situ stress mesurements by overcoring method -Development of 8element gauge for 3 dimentional estimation-, CRIEPI Report E385033
6 竹村友之.藤井伸一朗.中川哲夫.橫山幸也, 1995, 大規模空洞岩盤掘削時の岩盤擧動計測結果, 第26回岩盤力學に關るシンポジウ厶講演論文集, 291-295